MasterPro
MasterPro Multicookers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E1
Multicooker will not start a cooking program and displays E1 shortly after pressing Start.
Lid Position / Lid Lock Detection Fault
E10
E10 appears and the cooker will not start; often after a power surge or lightning event.
Main Control Board Communication / Internal Fault
E11
E11 error appears when trying to start a program; display and buttons may behave erratically.
Keypad / Control Panel Fault
E12
E12 appears and the cooker shuts down unexpectedly during operation.
Internal Power Supply / Low Voltage Fault
E13
E13 error appears and the cooker cannot detect that pressure has been released after cooking.
Pressure Release Detection Fault
E14
E14 appears and the cooker will not enter keep-warm or extended cooking modes.
Keep-Warm Temperature Control Fault
E15
E15 error appears when trying to start a delayed timer or preset program.
Real-Time Clock / Timer Circuit Fault
E2
Multicooker beeps and shows E2, will not heat or start pressure cooking.
Lid Temperature Sensor (NTC) Fault
E3
During heating, the display shows E3 and the cooker stops heating.
Bottom Temperature Sensor (NTC) Overheat / Out-of-Range Fault
E4
E4 appears shortly after starting a pressure program; cooker stops and may beep continuously.
Overtemperature / Dry-Boil Protection Trip
E5
E5 error appears and the cooker does not build pressure or start the cooking countdown.
Pressure Sensor Circuit Fault
E6
E6 is displayed and the cooker will not start any program involving pressure or high heat.
Pressure Sensor Calibration / Out-of-Range Error
E7
E7 appears during preheat; cooker fails to reach or maintain pressure.
Heating Circuit Underperformance / Open Heating Element
E8
E8 error appears and the cooker stops; often associated with excessive pressure or steam leakage.
Abnormal Pressure Rise / Overpressure Protection
E9
E9 is displayed and the cooker cannot detect proper lid lock or pressure state.
Lid Lock / Pressure Interlock Fault
Err
Display shows a generic 'Err' message and beeps; no specific code number is shown.
Generic System Error / Undefined Fault
HOT
Display shows 'HOT' and the cooker refuses to start a new program immediately after cooking.
High Base Temperature Lockout
LID
Display shows 'LID' or a lid icon and the cooker refuses to start a program.
Lid Not Detected / Lid Open Safety Lockout
Symptom
Buttons on the control panel are unresponsive or require very hard presses.
Keypad Wear / Touch Sensor Failure
Symptom
Cooking time counts down but food remains undercooked; cooker seems not hot enough.
Insufficient Heating / Under-Temperature Condition
Symptom
Display and lights flicker or reset when the heater turns on.
Voltage Drop / Internal Power Instability
Symptom
Display works but backlight is dim or uneven.
Display Backlight Degradation
Symptom
Inner pot contents burn or stick to the bottom frequently, even on normal recipes.
Localized Overheating / Poor Temperature Regulation
Symptom
Lid opens too easily during cooking or does not lock when starting a pressure program.
Lid Lock Not Engaging
Symptom
Lid will not open after cooking; appears stuck even though cooking is finished.
Lid Lock / Residual Pressure Retention
Symptom
Loud hissing and sputtering from the steam release valve; liquid sprays out during cooking.
Excessive Foaming / Vent Contamination
Symptom
Multicooker does not power on at all; no lights or display when plugged in.
No Power / Dead Appliance
Symptom
Multicooker heats but never reaches pressure; steam constantly escapes from the lid area.
Failure to Seal / Pressure Not Building
Symptom
Multicooker makes loud clicking, popping, or metallic noises during heating.
Thermal Expansion / Loose Internal Components
Symptom
Multicooker powers on but will not start any program; pressing Start does nothing.
Start Circuit / Safety Interlock Not Satisfied
Symptom
Multicooker shuts off or trips the household breaker during operation.
Overcurrent / Short Circuit
Symptom
Persistent bad odor from inside the multicooker, even after normal cleaning.
Odor Retention / Contamination
Symptom
Programs end too early or timer jumps ahead unexpectedly.
Timer / Control Logic Anomaly
Symptom
Steam or water leaks from around the lid hinge or side of the lid during pressure cooking.
Lid Gasket / Lid Body Leak
Symptom
Unusual grinding or scraping noise when opening or closing the lid.
Lid Hinge / Lock Mechanism Wear
Symptom
Water or condensation drips from the side or back of the cooker during or after cooking.
Condensation Management / Collector Overflow
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Multicooker will not start a cooking program and displays E1 shortly after pressing Start.
|
Lid Position / Lid Lock Detection Fault | View Details |
| E10 |
E10 appears and the cooker will not start; often after a power surge or lightning event.
|
Main Control Board Communication / Internal Fault | View Details |
| E11 |
E11 error appears when trying to start a program; display and buttons may behave erratically.
|
Keypad / Control Panel Fault | View Details |
| E12 |
E12 appears and the cooker shuts down unexpectedly during operation.
|
Internal Power Supply / Low Voltage Fault | View Details |
| E13 |
E13 error appears and the cooker cannot detect that pressure has been released after cooking.
|
Pressure Release Detection Fault | View Details |
| E14 |
E14 appears and the cooker will not enter keep-warm or extended cooking modes.
|
Keep-Warm Temperature Control Fault | View Details |
| E15 |
E15 error appears when trying to start a delayed timer or preset program.
|
Real-Time Clock / Timer Circuit Fault | View Details |
| E2 |
Multicooker beeps and shows E2, will not heat or start pressure cooking.
|
Lid Temperature Sensor (NTC) Fault | View Details |
| E3 |
During heating, the display shows E3 and the cooker stops heating.
|
Bottom Temperature Sensor (NTC) Overheat / Out-of-Range Fault | View Details |
| E4 |
E4 appears shortly after starting a pressure program; cooker stops and may beep continuously.
|
Overtemperature / Dry-Boil Protection Trip | View Details |
| E5 |
E5 error appears and the cooker does not build pressure or start the cooking countdown.
|
Pressure Sensor Circuit Fault | View Details |
| E6 |
E6 is displayed and the cooker will not start any program involving pressure or high heat.
|
Pressure Sensor Calibration / Out-of-Range Error | View Details |
| E7 |
E7 appears during preheat; cooker fails to reach or maintain pressure.
|
Heating Circuit Underperformance / Open Heating Element | View Details |
| E8 |
E8 error appears and the cooker stops; often associated with excessive pressure or steam leakage.
|
Abnormal Pressure Rise / Overpressure Protection | View Details |
| E9 |
E9 is displayed and the cooker cannot detect proper lid lock or pressure state.
|
Lid Lock / Pressure Interlock Fault | View Details |
| Err |
Display shows a generic 'Err' message and beeps; no specific code number is shown.
|
Generic System Error / Undefined Fault | View Details |
| HOT |
Display shows 'HOT' and the cooker refuses to start a new program immediately after cooking.
|
High Base Temperature Lockout | View Details |
| LID |
Display shows 'LID' or a lid icon and the cooker refuses to start a program.
|
Lid Not Detected / Lid Open Safety Lockout | View Details |
| – |
Buttons on the control panel are unresponsive or require very hard presses.
|
Keypad Wear / Touch Sensor Failure | View Details |
| – |
Cooking time counts down but food remains undercooked; cooker seems not hot enough.
|
Insufficient Heating / Under-Temperature Condition | View Details |
| – |
Display and lights flicker or reset when the heater turns on.
|
Voltage Drop / Internal Power Instability | View Details |
| – |
Display works but backlight is dim or uneven.
|
Display Backlight Degradation | View Details |
| – |
Inner pot contents burn or stick to the bottom frequently, even on normal recipes.
|
Localized Overheating / Poor Temperature Regulation | View Details |
| – |
Lid opens too easily during cooking or does not lock when starting a pressure program.
|
Lid Lock Not Engaging | View Details |
| – |
Lid will not open after cooking; appears stuck even though cooking is finished.
|
Lid Lock / Residual Pressure Retention | View Details |
| – |
Loud hissing and sputtering from the steam release valve; liquid sprays out during cooking.
|
Excessive Foaming / Vent Contamination | View Details |
| – |
Multicooker does not power on at all; no lights or display when plugged in.
|
No Power / Dead Appliance | View Details |
| – |
Multicooker heats but never reaches pressure; steam constantly escapes from the lid area.
|
Failure to Seal / Pressure Not Building | View Details |
| – |
Multicooker makes loud clicking, popping, or metallic noises during heating.
|
Thermal Expansion / Loose Internal Components | View Details |
| – |
Multicooker powers on but will not start any program; pressing Start does nothing.
|
Start Circuit / Safety Interlock Not Satisfied | View Details |
| – |
Multicooker shuts off or trips the household breaker during operation.
|
Overcurrent / Short Circuit | View Details |
| – |
Persistent bad odor from inside the multicooker, even after normal cleaning.
|
Odor Retention / Contamination | View Details |
| – |
Programs end too early or timer jumps ahead unexpectedly.
|
Timer / Control Logic Anomaly | View Details |
| – |
Steam or water leaks from around the lid hinge or side of the lid during pressure cooking.
|
Lid Gasket / Lid Body Leak | View Details |
| – |
Unusual grinding or scraping noise when opening or closing the lid.
|
Lid Hinge / Lock Mechanism Wear | View Details |
| – |
Water or condensation drips from the side or back of the cooker during or after cooking.
|
Condensation Management / Collector Overflow | View Details |
No matching codes found
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